baber/WOPTO huggingface dataset:
Patent GB-1485228-A (GB)
Title: Gas turbine combustion controls
IPC: F02C9/32
Filed: 1975-10-02
Abstract: 1485228 Gas turbine engine fuel and air control GENERAL MOTORS CORP 2 Oct 1975 [4 Nov 1974] 40308/75 Headings F1G and F1L The invention relates to a fuel and air control system for a gas turbine engine arranged to maintain a constant ratio between fuel flow to the combustion chamber and combustion air-flow. The engine shown in Fig. 1 is suitable for a motor vehicle, the engine being controlled by a pedal 31 which causes axial movement of a rod 36 and thus axial movement of sleeves 26, 27 which control the openings 22, 24 of the flame tube 19 through which combustion and dilution air enter the flame tube from the outer plenum space, the openings 22 increasing in area and the openings 24 decreasing in area when the rod 36 moves downwardly and vice versa. Axial movement of the rod 36 also acts upon the main metering valve 86 in the fuel control system 38, the valve 86 moving outwardly as the rod 36 moves downwardly by reason of the cam member 82 which engages the head 83 of the metering valve. The fuel control system comprises a gear-pump 56 which delivers fuel into passages 58, the fuel being delivered through two metering valves disposed in parallel, the main metering valve 86 which is controlled by the operator's pedal as described above, and the metering valve 91 which is positioned in dependence on temperature T 3  of the air passing through duct 7 to the combustion chamber, the valve-member 91 being positioned by a cam 95 controlled by the temperature sensing device 51. A regulating valve 75 is provided to control by-pass of fuel from the pump delivery passage 58 back to the inlet of the pump, the valve being mounted on a rod 68 which is connected to two diaphragms, the upper diaphragm 63 being acted on at its upper side by the total pressure P T  sensed at the air intake 44 of the engine compressor 3 and at its lower side by the static pressure P S  also sensed at the air intake 44, so that the velocity head of the intake air acts to close the by-pass valve 75; the lower diaphragm 64 is acted on at its lower side by pump discharge pressure in passage 58 and at its upper side by fuel pressure in supply line 43 downstream of the metering valves 86, 91, the pressure being communicated through line 72. Thus the by-pass valve 75 is controlled so as to maintain the pressure drop across the fuel metering valve proportional to the square of the total air-flow rate. In Fig. 3 the fuel metering device comprises a cylindrical chamber 104 having a fuel inlet 58 and fuel outlet 43, an axially movable sleeve member 107 disposed therein being movable by the rod 36 in dependence on movement of the foot pedal; a rotationally movable sleeve 110 is disposed within the sleeve 107 being movable by shaft 52 in dependence or temperature T 3  sensed by device 51. The two sleeves have apertures 115, 114 which co-operate to define a metering orifice 120 through which fuel flows from inlet 58 to outlet 43.
Patent GB-890746-A (GB)
Title: Improvements in and relating to foot cushioning devices
IPC: A43B17/02
Filed: 1958-12-16
Abstract: 890,746. Foot cushioning devices. SCHOLL MFG. CO. Ltd. Dec. 16, 1958 [April 28, 1958], No. 40607/58. Class 17(2) A foot-cushioning device, shown inverted, consists of a film-like layer 1 and a vinyl foam cushion 3, the edges 5 of which are curved and therefore more dense, heat sealed together at their peripheries 4. At the forward end of the insole, the surface slopes more gradually to accommodate the toes. Reference has been directed by the Comptroller to Specification 871,504.
Patent GB-1107477-A (GB)
Title: Information recording
IPC: G01D15/14
Filed: 1966-09-13
Abstract: 1,107,477. Information recording. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept.13, 1966 [Dec.30, 1965], No.40764/66. Heading G2J. Light from a laser 1 passes through a film 3 having a photo-sensitive emulsion 4, e. g. a silver halide emulsion, and is reflected back upon itself by a mirror 2, thereby causing the light-waves to pass again through the film and set up standing waves therein, giving rise to equispaced parallel layers of metallic silver, as in the Lippmann process. The film is mounted so as to be rotatable into different angular positions, thus the light-waves form groups of spaced layers, the layers of each group being inclined to the layers of every other group. Alternatively, the film 3 may be exposed to light of different wave-lengths at different angles, or to light of different wave lengths at the same angle. To record information in binary form, the radiation from an He-Ne laser is used to form periodic structures, as described, in each region of the film, each structure representing one bit of information in one region. The information recorded in the film is read by transmitting radiation of the appropriate wave-length through the film, and sensing the transmitted or reflected wave energy as modified by the periodic structure of the film.
Patent GB-999112-A (GB)
Title: Improved means for conveying, drying, cleaning and handling fruit and other edible produce
IPC: A23N12/00
Filed: 1962-10-30
Abstract: 999,112. Cleaning apples &c. P. A. BELCHER. Jan. 24, 1964 [Oct. 30, 1962], No. 41011/62. Heading A4C. In apparatus for drying and cleaning apples &c., apples are fed on to and conveyed by a series of spaced rotary brushes 14-14F which remove surface wetness from the pre-washed apples and the water picked up by the brushes 14-14F is removed and transferred to a trough 22 by means of pivotally adjustable plates 17 set to make contact with the edges of the brushes. Apples are fed in rows to the first brush 14 from a feed regulator 3 comprising a rotary drum 3A with radial fins 3B, 3C which co-operate with a pivoted flap 2 on the end of a feed shoot 1, the flap 2 being successively lifted and allowed to fall by passage of the fins 3B, 3C whereby single rows of apples are deposited on the fins. A pivoted baffle plate 11 ensures gentle transfer of apples from the feed regulator 3 to the brush 14. The conveying of apples is enhanced by radial spokes 24 on the brushes. The spacing of brushes is adjustable and the brushes include recesses which are aligned with and permit free passage of spokes 24 on adjacent closely spaced brushes. Guides may be provided to maintain a linear movement of apples through the apparatus. The brush carrying frame is adujstable for height and inclination. Specifications 883,270 and 982,422 are referred to.
Patent GB-1095058-A (GB)
Title: Means for transferring stationery in belt conveyor installations
Inventor: SCHNEIDER ERICH
IPC: B07C3/08
Filed: 1966-09-14
Abstract: 1,095,058. Endless conveyers. ORGANISATION RALFS KOMM. GES. Sept. 14, 1966, No. 41057/66. Heading B8A. Stationery files (10) (Fig. 2, not shown) are conveyed standing on edge on a conveyer belt 11 along a channel formed by members 14, 15. At a gap in the latter, vertical conveyer belts 12, 13 may collect the stationery or may allow it to pass unhindered on the conveyer 11, according to the setting of an arm 19 carrying guide rollers 16, 18 of the belt 13. In the transfer position of the arm (19) (Fig. 3, not shown), effected by a solenoid-actuated member 23, the pulley 16 is urged into engagement with a file (10), the latter having been stopped by the operation of a stop arm 21. After the vertical transfer of the file (10) has been completed, a spring (24) (Fig. 2, not shown) returns the arm 19 to a non-transfer position. If no transfer is intended, the arm 21 remains in a position which does not obstruct the path of the file (10). Operation of the arm 19 may depend on a setting of destination tags on the file (10). As shown, the belt 13 is formed by two or more laterally spaced belts 13a, 13b, which may have individual tensioning means thereby compensating for a file of uneven thickness.
Patent GB-1318444-A (GB)
Title: Field effect semiconductor devices
IPC: H01L21/78
Filed: 1970-08-26
Abstract: 1318444 Semi-conductor devices HITACHI Ltd 26 Aug 1970 [27 Aug 1969] 41143/70 Heading H1K Connection to the substrate of a field effect device is effected at the top surface via a region of opposite conductivity type to the substrate, the junction being mechanically distorted to increase its leakage current and thus form a non- rectifying connection between the region and the substrate. As shown, Fig. 1, a boundary region 6 is formed in an N-type Si substrate 1 simultaneously with the source and drain regions 2, 3, of an IGFET, which it surrounds, by selective diffusion of B. A1 contacts are applied to the source and drain regions 2, 3, and to the boundary region 6 and an insulated gate electrode is formed on a si'icon oxide layer 5 between the source and drain. The wafer is scribed at the boundary region 6 to form grooves 8 and divided into dice, the junction between region 6 and substrate 1 being mechanically distorted during this process so that it becomes leaky and forms a non-rectifying connection between contact 7 and substrate 1. The contact 7 preferably extends over the whole surface area of region 6 and may also contact substrate 1. A plurality of IGFETs formed as an IC may be provided with a common boundary region which is mechanically distorted to provide the substrate contact. Such an IC may be mounted in a recess in a ceramic support by a suitable adhesive such as glass, Fig. 6 (not shown). The invention may also be applied to JUGFETs.
Patent GB-849615-A (GB)
Title: A reckoner for educational purposes
IPC: G09B23/04
Filed: 1958-12-23
Abstract: 849,615. Educational appliances. KNEFELI, V. Dec. 23, 1958 [Jan. 4, 1958], No. 41437/58. Class 146(2). A reckoner for educational purposes comprises a disc 1 of plywood having a central pin 2 and edge notches 3 dividing the disc into segments representing ¢, “, #, 1/3, 1/6, &c. To the back of the disc is attached a frame 11 having rubber cords 4 the ends of which have rings 12 so that the cords can be taken through a notch 3 to be attached to the pin 2. Over the main disc 1 are placed supplementary discs 14 which have scales 17, 18 and are secured to the main disc by rubber cords 16 clipped into the notches 3. The back of the disc 1 may be provided with suction discs 13 to secure it to a blackboard or a smaller hand disc may have the pin 2 extending on both its sides for the attachment of cords 4.
Patent GB-1515605-A (GB)
Title: Vending machine for use in combination with a microwave oven
IPC: H05B6/80
Filed: 1976-10-06
Abstract: 1515605 Power supplies for microwave ovens MOYER DIEBEL Ltd 6 Oct 1976 [21 Oct 1975] 41536/76 Heading H2H A food vending machine for use with a microwave oven comprises a first relay 34 operable upon vending of an item by the machine to energize the oven, a timer 30 which starts timing a predetermined period on vending of an item by the machine and which controls the first relay to time the period during which power is supplied to the oven, and a second relay 28 which maintains the power supply to the oven provided operation of the oven under the control of its own cooking timer is commenced within the predetermined period set by the vending machine timer after the vending of an item. On vending an article from the machine, contacts 40 are momentarily opened to start the timer 30 which de-energizes the relay 34. Contacts 26 are closed so that power supplied to input terminals 22 is fed to output terminals 24 connected to the oven. If the oven is now operated by the purchaser, current flowing through the second relay 28 causes contacts 36 to be closed thereby shunting the first relay 34. At the end of the predetermined period, the timer 30 closes its contacts to re-energize the first relay 34 thereby opening the contacts 26 to disconnect the supply to the oven, the purchased item in the meantime having been heated in the oven for a period determined by the oven timer.
Patent GB-995743-A (GB)
Title: Improvements related to toothed gearing
Inventor: JACKSON HAROLD ERNEST
IPC: B29C70/74
Filed: 1961-11-22
Abstract: 995,743. Injection moulding driving belts. TECALEMIT (DEVELOPMENTS) Ltd. Sept. 26, 1962 [Nov. 22, 1961], No. 41816/61. Heading B5A. [Also in Division F2] A positive-driving belt comprises a steel strip 1 having equidistant longitudinally spaced slots 2 which accommodate the shanks 3A of a plurality of nylon teeth elements 3 moulded on to the strip 1. The belt may be made by injection moulding apparatus comprising a fixed die assembly 10, a movable die assembly 21 and injection nozzle 26. Three teeth at a time are moulded and a spring-biased roller 33 prevents buckling of the strip. The abutting ends of a length of strip 1 may be welded together or, alternatively, they may be connected by a perforated steel link plate (Fig. 5, not shown) held by moulded teeth elements.
Patent GB-1101565-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J9/22
Filed: 1965-10-04
Abstract: 1,101,565. Work holders. RAULAND CORPORATION. 4 Oct., 1965 [20 Oct., 1964], No. 42,110/65. Heading B2L. [Also in Division H1] Apparatus for coating the faceplate of a cathode ray tube with a viscid material-e.g. polyvinyl alcohol containing a phosphor-permits simultaneous controlled rotation and tilting of the faceplate. The faceplate 5 is mounted on a workholder 23 rotatable about its axis by gear 21 and shaft 16, and tiltable about shafts 16 and 30 by rotation of the latter, to which the housing 20 is secured. Operation of a first control button actuates an hydraulic system which rotates shaft 30 to render the faceplate horizontal, and lowers into place a panel bearing on infra-red heater (Fig. 1, not shown). Actuation of a second control button causes the deposition of a quantity of the viscid coating material upon the faceplate, energization of an electric timer, and simultaneous rotation of shafts 16 and 30, to produce both rotation and tilting of the faceplate, followed by a stay of the tilting motion at a tilt angle of about 30‹, during which excess coating material accumulated at the lowermost edge of the face plate is syphoned off, whereafter the tilting motion is resumed. Immediately thereafter, cams 45b and c engage their cam followers which adjust the hydraulic system to cause the faceplate both to rotate about its axis at an increased speed, and also rapidly to tilt to a substantially vertical position, as shown, whereupon cam 45d actuates its cam follower to prevent further tilting rotation, to switch on the infra-red heaters, and to energize a second timer, which subsequently switches off the heaters, and stops the rotation of the faceplate about its axis.
Patent GB-1126570-A (GB)
Title: Arc-suppressing circuit for switching devices in direct current circuit
Inventor: WATANABE TOSHIO
IPC: H01H9/54
Filed: 1966-09-21
Abstract: 1,126,570. Arcing preventing in switches. MATSUSHITA DENKO K.K., and T. WATANABE. 21 Sept., 1966 [30 Oct., 1965], No. 42151/66. Heading H1N. A two-terminal multi-layer semi-conductor element SSS in series with a capacitor C or resistor R (Fig. 5, not shown), is placed across the contacts of a D.C. switch SW to suppress arcing. The switch contacts are in series with a load Z, and the Fig. 5 circuit is used only when other contacts (not shown) are connected in series and the load is interrupted at these other (latter) contacts. The capacitor C has a discharge resistor (R<SP>1</SP>) in parallel therewith to aid quick discharge of the capacitor (Fig. 3, not shown). An inductor (L) in series with element SSS protects against voltage surges (Fig. 3, not shown). A resistance (R) may be connected between element (SSS) and the live side of the contacts, and an inductor (L) placed in parallel with capacitor (C), (Fig. 4, not shown). The circuit of Fig. 5 may have a capacitor or inductor conductor in parallel with elements SSS (Figs. 6, 7, not shown).
Patent GB-1348724-A (GB)
Title: Control unit for controlling a recorder in a telephone answering and message recording system
IPC: G10L25/78
Filed: 1971-09-10
Abstract: 1348724 Detecting speech signals; substation equipment COMPUR-WERK GmbH 10 Sept 1971 [7 Jan 1971 8 June 1971] 42240/71 Headings H4K and H4R  An arrangement for discriminating between speech and signal frequencies operates by responding to the time dependent variation in frequency in the speech signals to produce an output which is used to operate a switching device in a telephone answering machine. The arrangement comprises an amplitude limiter 4 which clips the input signals S, B into the form shown as SL, BL where the frequency modulated nature of the speech signal SL can be seen. Discriminator 5 effectively converts a frequency modulation into an amplitude modulation giving a signal SL<SP>1</SP> after separator 6. The signal frequencies being of constant frequency are rejected almost entirely. The signal from separator 6 is used to operate a threshold device 8 and switch 9. To avoid spurious operations due to disturbances a shunting path comprising an integrator 10 may be employed. Preferably the threshold switching stage employs a comparator having two stages, both of which have to conduct simultaneously to operate the switch.
Patent GB-1439667-A (GB)
Title: Measurement of neutron flux in nuclear reactors
IPC: G21C17/108
Filed: 1973-09-07
Abstract: 1439667 Insulating nuclear reactors; detecting neutrons SIEMENS AG 7 Sept 1973 [8 Sept 1972] 42292/73 Headings G6C and G6P Apparatus for measuring distribution of neutron flux in a reactor vessel (e.g. of a pressurized water reactor) comprises an emitter E (Fig. 1) movable to and from a measuring location (as shown) within the vessel, the emitter being activatable by neutrons to emit γ-radiation, and an electrode 11 forming part of a measuring means M, constituted by a plurality of separate sections 10 (Fig. 2) disposed at the measuring location. The emitter E is movable, under the action of compressed air admitted at either port A1 or A2 as appropriate, from the measuring location to a rest position in an arm S (outside the vessel R) of a guide tube L, and vice versa. During insertion of the emitter E into the measuring location, instantaneous values of currents from the electrode sections 10 are measured and plotted against time (Fig. 4, not shown); subsequently, the resulting curve is differentiated with respect to the relative time-dependent spatial positions of the emitter and electrode (Fig. 5, not shown), the differentiated curve being used to derive a relation between neutron flux distribution and degree of insertion of the emitter E in the reactor core K. In detail (Fig. 2), the emitter E comprises a helical spring 3 of cobalt and rounded endcaps 4, received, at the measuring location, within a guide tube 2 which is surrounded by a layer 6 of ceramic insulation such as zirconium oxide or aluminium oxide; the layer 6 comprises sleeves 7 separated axially by larger diameter rings 8 which serve to space the electrode sections 10 axially of each other. The sections 10 are of nickel alloy, and are connected, by means of first leads 12, to a measuring instrument (not shown) from which second leads extend and are connected to the guide tube 2. Mounting and spacer elements 14, 17 are apertured to conduct compressed air between the annular space 16 between the electrode 11 and an outer jacket 1 and the space within the guide tube 2. In operation, neutron activation of the emitter E results in γ-radiation being released; the latter participate in (γ,#) processes in the sections 10 and currents, resulting from the #-particles, are measured.
Patent GB-1187487-A (GB)
Title: Combination Conference Connection and Call Transfer Device for Telephone Subscriber Lines
Inventor: RICE CHARLES FRANKLIN
IPC: H04M3/58
Filed: 1967-09-16
Abstract: 1,187,487. Automatic exchange systems. C. F. RICE and C. KIMTANTAS. 16 Sept., 1967, No. 42309/67. Heading H4K. A subscriber is provided with two (or more) exchange lines L1, L2 to which his set may be connected alternatively by a switch 34, and the lines may be coupled together by a transformer 17, the windings of which are normally ineffective on account of series-connected silicon controlled rectifier switches 13, 25, the latter being bi-directional and being made conductive by the actuation of push-buttons 19, 30 to apply control voltages to trigger electrodes 20, 31. Thus, a call may be set up or received over either line, an incoming call on one line may be transferred over the other one, or a conference call may be established. Keys 11a, 23a provide for release if necessary. The circuitry may be incorporated in a box located near the set, and the control key or buttons may be on the set itself. Operation is independent of line polarities.
Patent GB-1197933-A (GB)
Title: Improvements in or relating to Plate Type Heat Exchangers
Inventor: EDDOWES HUGH
IPC: F28F3/04
Filed: 1967-09-18
Abstract: 1,197,933. Plate heat exchangers. A.P.V. CO. Ltd. 21 Aug., 1968 [18 Sept., 1967], No. 42369/67. Heading F4S. Parallel rows of spaced protuberances 3 extend from the same surface of a heat exchange plate transversely across a flow-space zone bounded by said plate surface, the individual protuberances being longer than the spacing therebetween in a row, and being relatively staggered, and all the protuberances being of the same height so that when a plurality of plates are stacked the protuberances of one plate engage with the parent metal level of the adjacent plate. In use, the plates are stacked with the protuberances of one plate 1 offset from those of an adjacent plate 2 and the arrangement is such that a tortuous fluid path is provided between adjacent plates, said path including portions in which the fluid is given a swirling motion to break up the fluid boundary layer, as indicated by the arrows a, 61, b2, in Figs. 2 and 5. The fluid spaces may be bounded by peripheral gaskets. The space between adjacent protuberances in a row may be angled, tapered or of Venturi form (Figs. 7-10), and the individual protuberances may have a rounded shape (Fig. 6).
Patent GB-1010147-A (GB)
Title: Improvements in or relating to opening, teasing and/or blending machines for fibrousmaterials
Inventor: CALLAGHAN ALBERT EDWARD
IPC: D01G9/00
Filed: 1960-12-09
Abstract: 1,010,147. Opening and lap-forming machines. BIRFIELD ENGINEERING Ltd. March 8, 1962 [Dec. 9, 1960], No. 42379/60. Heading D1N. In order to eliminate or reduce the adverse effects of air currents developed by rotation of an opening drum and causing unevenness in a random fibre web, the drum is provided with a hood which forms a seal with a feed plate. A feed roll 3 operates in association with the feed plate 2 and their proximity is such that when fibres are being fed to the drum 1 the fibres seal the space between them. Teeth on the feel roll 3 are arranged to resist passage of fibres towards the more quickly moving drum 1. Opened fibres are removed by an air stream in a duct 8 from which they may pass to a further processing stage, such as condensing means forming pads. Fibres received by the feed roll 3 may have passed through a pre-opening device broadly similar to the above apparatus and including a condenser on to which the fibres are blown. The surface of a feed plate adjacent the pre-opening drum may be provided with combs. Specification 1,010,146 is referred to.
Patent GB-1098389-A (GB)
Title: Substituted thiophenols
Inventor: BAXTER RICHARD ALLEN
Filed: 1965-10-08
Abstract: The invention comprises compounds of the formula <FORM:1098389/C2/1> in which R is a secondary alkyl group, R1 is a hydrocarbon group, n is 1 or 2 and m is 0-4, the sum of m and n being not more than 5. The products may be prepared by reacting the corresponding primary amine or a precursor thereof, e.g. the corresponding nitro compound, with a ketone in the presence of a reducing agent.  The preferred reducing agent is nascent hydrogen, but molecular hydrogen may also be used in the presence of a hydrogenation catalyst. The process may be modified by producing a Schiff's base from the appropriate primary amine and the ketone, and then reducing this in a separate operation. An example is given of the preparation of 4-isopropylaminobenzenethiol from a reaction mixture containing p-nitrophenol, acetone, zinc amalgam and hydrochloric acid.  Other products of the invention are specified also.